Righto, I am yet to play it, but I will post as soon as I do

Feel free to ask if you need help. Playing Civ 4 without having played its prerequisites is probably the second largest learning curve in gaming (after Master of Orion 3, fuck that was complex).

The patch is out, pick one of these mirrors:

Filefront
3D Downloads
CivFanatics
Fileshack
Firaxis (the developer)